When was the United States Army established?

The United States Army was established on June 14, 1775. This date marks the formation of the Continental Army, which was created to fight against British rule during the American Revolutionary War. The establishment of the Army was a crucial step in building a unified military force to defend the colonies' interests and to pursue independence.

The choice regarding July 4, 1776, pertains to the adoption of the Declaration of Independence, which declared the colonies' freedom from British rule but did not establish the Army itself. The January 1, 1783, date signifies the end of the Revolutionary War, reflecting a post-war context rather than the Army's establishment. Lastly, December 15, 1791, is related to the ratification of the Bill of Rights, which, while significant for American governance and civil rights, is not connected to the establishment of the Army. Thus, June 14, 1775, is the definitive date marking the origin of the United States Army.